User`s guide

3(59)
Datum/Date Rev
Dokumentnr/DocumentnrUppgjord/Prepared
Dokansv/Godkänd - Doc respons/Approved Kontr/Checked Tillhör/Referens-File/Reference
99-07-15 A
365/155 34-ASB 150 02 Uen
FACILITY DESCRIPTION
Faktaansvarig - Subject responsible
Definition
Digital Private Networking is centered around two main
concepts:
1 Digital private networking between ASB 150 02 and
ASB 501 systems, based on DSS1 signalling *
over switched public lines.
The interface between the private network and
ASB 150 02 is at the T-reference point
2 Digital private networking between ASB 150 02 /
ASB 501 and other-vendor exchanges,
based on QSIG ** over leased lines.
The interface between the private network and
ASB 150 02 is located at the Q-reference point
At the interface between the private network and
ASB 150 02, Basic Access (BA, = 2B+D) and Primary
Rate Access (PRA, = 30B+D) are supported for point-
to-point connection, at the Q-reference point as well as
the T-reference point.
Connection via switched public ISDN lines is referred
to as a part of a Virtual Private Network, as non-
permanent connections are used.
The feature "VPN service from PSTN" which allows to
connect ASB 150 02 via switched lines with a public
network supporting the central database for storage of
all private network numbers is not affected by the VPN
functionality in ASB 150 02 (for more information
concerning the feature "VPN service from PSTN" refer
to the corresponding chapter in this document).
* ETSI standard
** ETSI / ECMA / ISO standard
T
2B+D
30B+D
public ISDN
ASB
15002
switched lines
(VPN over public ISDN with DSS1)
Q
private network
ASB
15002
leased line with QSIG
2B+D
30B+D
Digital Private Networking
ASB
15002
ASB
15002
ASB 501
ASB
15002
ASB
15002
other
vendor PBX